Air quality index [µg/m3]:
excellent ≤ 12
good ≤ 36
lightly polluted ≤ 60
moderately polluted ≤ 84
heavily polluted ≤ 120
severely polluted > 120
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
050023goodexcellent61excellent
040024goodexcellent41excellent
030022goodexcellent41excellent
020020goodexcellent41excellent
010024goodexcellent41excellent
000025goodexcellent41excellent
230029goodexcellent51excellent
220033goodexcellent61excellent
210028goodexcellent61excellent
200027goodexcellent51excellent
190023goodexcellent41excellent
180021goodexcellent41excellent
170020goodexcellent31excellent
160024goodexcellent41excellent
150029goodexcellent51excellent
140031goodexcellent51excellent
130032goodexcellent61excellent
120030goodexcellent51excellent
110030goodexcellent51excellent
100030goodexcellent51excellent
090032goodexcellent51excellent
080034goodexcellent51excellent
070034goodexcellent51excellent
060033goodexcellent51excellent